On Mon, Mar 18, 2013 at 09:18:28PM -0600, Chris Murphy wrote:
> I'm not finding a reference to "secure erase trim". In any case I
> wouldn't expect it to differ from trim.

There's a 'secure discard' trim command in linux,

http://lkml.indiana.edu/hypermail/linux/kernel/1007.1/02355.html

Used inside block layer
http://lxr.free-electrons.com/source/block/blk-core.c#L1738
(assumes the underlying device advertises the secure discard capability)

david
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